Results 81 to 90 of about 216,611 (267)

[COVID-19 mortality and its relationship with internet searches on mental health during the first year of pandemic]. [PDF]

open access: yesRev Psiquiatr Salud Ment (Engl Ed), 2022
Becerra-García JA   +3 more
europepmc   +2 more sources

Cicio económico en el pensamiento económico keynesiano

open access: yesRevista de Ciencias Sociales, 2014
EI objetivo del presente artículo es analizar los ciclos econ6micos como desviaciones de las variables macroecon6micas presentes en la actividad agregada, sus características y la teoría del ciclo, que buscan darle explicaci6n al comportamiento de la ...
Gerardo A. Castellanos T.
doaj  

Las unidades de segmentación y su entramado en un discurso de Rodríguez Zapatero [2011] [PDF]

open access: yes, 2014
The housing units, the sequential plane so as the enunciate ones, which forms our model, make it enable to integrate each other. So, in sequences, superior units, (initial, development and closing) will integrate others also belonging to the sequential ...
Cortés Rodríguez, Luis
core   +4 more sources

Quantifying Strain and Its Effect on Charge Transport in Ge/Si Core/Shell Nanowires

open access: yesAdvanced Science, EarlyView.
This work demonstrates strain engineering in Ge/Si core–shell nanowires (CS NWs) by tuning the Ge core‐Si shell dimensions. Polarization‐resolved µ‐Raman and geometrical phase analysis quantify the resulting strain. Electronic transport measurements demonstrate record hole mobilities up to 25 400 cm2/Vs, highlighting these Ge/Si CS NWs as a promising ...
Aswathi K. Sivan   +14 more
wiley   +1 more source

Bidirectional Photoswitching of a Tailored Azobenzene with Red and Far‐Red Light Involving Triplet Sensitization in an Aqueous System

open access: yesAdvanced Science, EarlyView.
The action spectrum of a tailored azobenzene is shifted toward bio‐optical window through the chemical modification of its singlet and triplet energy levels. Consequently, the bidirectional photo‐switching of azobenzene in physiological conditions is achieved when excited by red and far‐red light, which offers greater tissue penetration.
Mila Miroshnichenko   +11 more
wiley   +1 more source

ARE THERE GOODWIN EMPLOYMENT-DISTRIBUTION CYCLES? THEORETICAL AND EMPIRICAL EVIDENCE [PDF]

open access: yes
modelo predador-presa, comportamiento dinámico no lineal, ciclos de ...
Eleonora Herrera, Mario García Molina
core  

Análisis de los efectos medioambientales en una economía regional: una aplicación para la economía aragonesa [PDF]

open access: yes, 2009
El objetivo de este trabajo es analizar el impacto medioambiental de los hogares en una economía regional, incluyendo, no sólo el impacto directo, sino también el indirectamente generado a través de la producción de los bienes y servicios que demandan.
Flores García, Mónica   +1 more
core  

Noninvasive Focal Gene Delivery into the Cerebellum of Non‐Human Primates using Focused Ultrasound

open access: yesAdvanced Science, EarlyView.
Focal and non‐invasive viral vector delivery in non‐human primates remains a major challenge in translational neuroscience. Low‐intensity focused ultrasound was used to transiently open the blood–brain barrier and enable targeted gene delivery to the cerebellum.
Noelia Esteban‐García   +11 more
wiley   +1 more source

Un modelo microeconómico de la economía peruana (una aplicación de programación lineal)

open access: yesEconomía, 1982
El artículo no presenta resumen.
César A. Ferrari
doaj  

Modelo para el análisis de la quiebra financiera en pymes agroindustriales antioqueñas

open access: yesApuntes del CENES, 2016
El riesgo de quiebra en el sector agroindustrial antioqueño no ha sido ampliamente explorado a partir de modelación estadística, que puede proveer importantes elementos y tendencias para conocer el comportamiento de este sector determinante en la ...
Marisol Valencia Cárdenas   +3 more
doaj   +1 more source

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